<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card>
            <el-row>
                <el-col :span="8">
                    <!-- 这里清空有个小bug:只有点击删除符号,才会重新回去数据,直接删除文本框中的内容不会直接获取数据 -->
                    <el-input placeholder="请输入内容"
                     v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" style="margin-left:10px" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!--table表格区域  -->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="goods_name" label="商品名称" ></el-table-column>
                <el-table-column prop="goods_price" label="商品价格(元)" ></el-table-column>
                <el-table-column prop="goods_number" label="商品数量" ></el-table-column>
                <el-table-column prop="add_time" label="创建时间" >
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" circle size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" circle size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[10, 20, 30, 50]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>

        </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询对象参数
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodsList: [],
            // 总数据条数
            total: 0,


        }
    },
    created() {
        this.getGoodsList() 
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get(`/goods`, { params: this.queryInfo})
            if(res.meta.status !== 200) return this.$message.error("商品列表获取失败")
            this.goodsList = res.data.goods
            this.total = res.data.total
        },
        // 
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList();
        },
        async removeById(id) {
            const confirmResult  = await  this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch((err => err))

            if(confirmResult !== "confirm") return this.$message.info("已取消删除")

            const { data: res } = await this.$http.delete(`goods/${id}`)
            if(res.meta.status !== 200) return this.$message.error("删除失败")

            this.$message.success("删除成功")
            this.getGoodsList();
        },
        // 点击添加商品按钮,跳转到添加商品的页面
        goAddpage() {
            this.$router.push('goods/add')
        },

    },
}
</script>

<style lang="less" scoped>
    
</style>